Business CD with a USB socket?

[Sidewaze Samm]

Apologies if this is addressed elsewhere - I've looked but couldn't find what I'm after...

I really want to keep the OEM head unit and spend as little as possible on ICE in what is only a weekend car, so not too bothered about DAB or Bluetooth, but would like to take my music library with me on trips - so is it possible, by either buying a proprietry lead and connector (preferably) or by manufacturing my own (somehow), to add a USB socket to the BMW Business CD head unit?

This would only be for playing music from a memory stick, not charging.

If possible, would it just be a case of replacing the Aux socket? Using the CD changer connection? What would be involved in putting together a home-made cable/connector? Or is it a non-starter?

Cheers

 

[Sidewaze Samm]

Maybe one of these will do it?
https://www.ebay.co.uk/itm/3-5mm-Male-Plug-Jack-To-USB-2-0-Female-Car-Stereo-Audio-Adapter-Converter-ZN/283391286039?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160811114145%26meid%3D4a13fd3c4f8c4eaca355d5d18ee66340%26pid%3D100667%26rk%3D1%26rkt%3D8%26sd%3D283391286039%26itm%3D283391286039&_trksid=p2045573.c100667.m2042

https://www.ebay.co.uk/itm/3-5mm-Car-Plug-to-USB-Female-Jack-Socket-Converter-Lead-Adapter/173631171771?hash=item286d396cbb&enc=AQADAAAC8FjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVcL9hBl6uXJ9qPqwbqVfmuxxL%2BTEnEzI%2B6DYYMokM%2BlDm1nxpSR%2B0QupNssrxxWbmMUA5c0hR7JgdbS%2FdCbMqLw31tVxyiFMfvNjIJr19oBv%2Bg%2FHX8GbRvfcar8iSa5bVQI6Q1E%2BD3Z9ojEEW4KuWwqbm3I5Y%2FUz1%2Fb7qPXmHK8%2BPDLQJ0dvhS%2F7UMMW7vrclqY4N3JCa42TP%2BNxh6yaIM%2FnEz9HQRZSSie4evf7iSNWHqe6tSVYlr52ZHKb1RySOOOSjZdbAJFr9GsMu9zhWbuBy1cJzx7cXn8JZngrwafPRE3ihrgMYZ1r9uV09SHTalEGMgAxRzqiaYzumE5Ukm5WJA2eFha7d3CZ2O9688Rw37LZ3js61GCQHbd4KU5pi1fauzP4PBlA%2BfDVSd6X0zFthXhakt4NaCoXlPGcxPFQZv8olR5oEITXhQtaj8xzZ91%2BZHt4JPBvgk29lva07yLRjGOneDM2BhTM4LJZvBLC%2BFDNlactkkqM9%2B7dlKp2LgrAmpdf5y935B7rxpVeA8uMaN2N7mwsiezrZyljdxIdhlulstqZHXTkUda7Wo%2FK6088B6S%2FxOWVQ0BvmM7XEnejoU5DgJuJzxVlZX4wqESI7%2Bm4vm9ANhdd8f9pDsUUdJ8cIpBXYayd%2B2lI%2Bt4bsET%2FuuPca24YawwgOZIDQ4znWuwBLv7%2BvKnVZpE9Lgrg%2BaM1qJa9Gj%2B87OPhVTW50O39RUoa4hvFGVKFZpX%2BmFpFa9KQF0W0fuQI7oFKGRhJgw3QjY%2BFEg9sZtWeHpttY4B%2FbxO5q4zRBnyvMLLXde4FoA1QTzIuXX8e3eFgfe0I7JY9JidM8Gw5MhhAvKWSeG1B0E0IU1el6gn5fndQWXda%2BXjovDFVZbC7FXaKERAzblbMAPKoEgRL3VwlQYRhASaAPcxtuNIO9emfqBmfxsN0cY8Y1YyT5Z4WHT10bZ4A%2F&checksum=1736311717712a72face1ddf40a5a90f01aac50ce1d6

 

[Wood Butcher]

I bought a box on eBay which connects to the back of the business radio and gives aux, usb & sd connections.

I wrote a topic “cheap audio upgrade” but don’t know how to add a link to it on phone :|

 

[Jakg]

Maybe one of these will do it?
https://www.ebay.co.uk/itm/3-5mm-Male-Plug-Jack-To-USB-2-0-Female-Car-Stereo-Audio-Adapter-Converter-ZN/283391286039?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160811114145%26meid%3D4a13fd3c4f8c4eaca355d5d18ee66340%26pid%3D100667%26rk%3D1%26rkt%3D8%26sd%3D283391286039%26itm%3D283391286039&_trksid=p2045573.c100667.m2042

https://www.ebay.co.uk/itm/3-5mm-Car-Plug-to-USB-Female-Jack-Socket-Converter-Lead-Adapter/173631171771?hash=item286d396cbb&enc=AQADAAAC8FjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVcL9hBl6uXJ9qPqwbqVfmuxxL%2BTEnEzI%2B6DYYMokM%2BlDm1nxpSR%2B0QupNssrxxWbmMUA5c0hR7JgdbS%2FdCbMqLw31tVxyiFMfvNjIJr19oBv%2Bg%2FHX8GbRvfcar8iSa5bVQI6Q1E%2BD3Z9ojEEW4KuWwqbm3I5Y%2FUz1%2Fb7qPXmHK8%2BPDLQJ0dvhS%2F7UMMW7vrclqY4N3JCa42TP%2BNxh6yaIM%2FnEz9HQRZSSie4evf7iSNWHqe6tSVYlr52ZHKb1RySOOOSjZdbAJFr9GsMu9zhWbuBy1cJzx7cXn8JZngrwafPRE3ihrgMYZ1r9uV09SHTalEGMgAxRzqiaYzumE5Ukm5WJA2eFha7d3CZ2O9688Rw37LZ3js61GCQHbd4KU5pi1fauzP4PBlA%2BfDVSd6X0zFthXhakt4NaCoXlPGcxPFQZv8olR5oEITXhQtaj8xzZ91%2BZHt4JPBvgk29lva07yLRjGOneDM2BhTM4LJZvBLC%2BFDNlactkkqM9%2B7dlKp2LgrAmpdf5y935B7rxpVeA8uMaN2N7mwsiezrZyljdxIdhlulstqZHXTkUda7Wo%2FK6088B6S%2FxOWVQ0BvmM7XEnejoU5DgJuJzxVlZX4wqESI7%2Bm4vm9ANhdd8f9pDsUUdJ8cIpBXYayd%2B2lI%2Bt4bsET%2FuuPca24YawwgOZIDQ4znWuwBLv7%2BvKnVZpE9Lgrg%2BaM1qJa9Gj%2B87OPhVTW50O39RUoa4hvFGVKFZpX%2BmFpFa9KQF0W0fuQI7oFKGRhJgw3QjY%2BFEg9sZtWeHpttY4B%2FbxO5q4zRBnyvMLLXde4FoA1QTzIuXX8e3eFgfe0I7JY9JidM8Gw5MhhAvKWSeG1B0E0IU1el6gn5fndQWXda%2BXjovDFVZbC7FXaKERAzblbMAPKoEgRL3VwlQYRhASaAPcxtuNIO9emfqBmfxsN0cY8Y1YyT5Z4WHT10bZ4A%2F&checksum=1736311717712a72face1ddf40a5a90f01aac50ce1d6

I can't see how they would work.

 

[Z4 Gaz]

Maybe one of these will do it?
https://www.ebay.co.uk/itm/3-5mm-Male-Plug-Jack-To-USB-2-0-Female-Car-Stereo-Audio-Adapter-Converter-ZN/283391286039?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160811114145%26meid%3D4a13fd3c4f8c4eaca355d5d18ee66340%26pid%3D100667%26rk%3D1%26rkt%3D8%26sd%3D283391286039%26itm%3D283391286039&_trksid=p2045573.c100667.m2042

https://www.ebay.co.uk/itm/3-5mm-Car-Plug-to-USB-Female-Jack-Socket-Converter-Lead-Adapter/173631171771?hash=item286d396cbb&enc=AQADAAAC8FjVrDbVsZ8oH%2F8PNHtt9VX4%2Fw7FZcmMuqsX8uaFEduVcL9hBl6uXJ9qPqwbqVfmuxxL%2BTEnEzI%2B6DYYMokM%2BlDm1nxpSR%2B0QupNssrxxWbmMUA5c0hR7JgdbS%2FdCbMqLw31tVxyiFMfvNjIJr19oBv%2Bg%2FHX8GbRvfcar8iSa5bVQI6Q1E%2BD3Z9ojEEW4KuWwqbm3I5Y%2FUz1%2Fb7qPXmHK8%2BPDLQJ0dvhS%2F7UMMW7vrclqY4N3JCa42TP%2BNxh6yaIM%2FnEz9HQRZSSie4evf7iSNWHqe6tSVYlr52ZHKb1RySOOOSjZdbAJFr9GsMu9zhWbuBy1cJzx7cXn8JZngrwafPRE3ihrgMYZ1r9uV09SHTalEGMgAxRzqiaYzumE5Ukm5WJA2eFha7d3CZ2O9688Rw37LZ3js61GCQHbd4KU5pi1fauzP4PBlA%2BfDVSd6X0zFthXhakt4NaCoXlPGcxPFQZv8olR5oEITXhQtaj8xzZ91%2BZHt4JPBvgk29lva07yLRjGOneDM2BhTM4LJZvBLC%2BFDNlactkkqM9%2B7dlKp2LgrAmpdf5y935B7rxpVeA8uMaN2N7mwsiezrZyljdxIdhlulstqZHXTkUda7Wo%2FK6088B6S%2FxOWVQ0BvmM7XEnejoU5DgJuJzxVlZX4wqESI7%2Bm4vm9ANhdd8f9pDsUUdJ8cIpBXYayd%2B2lI%2Bt4bsET%2FuuPca24YawwgOZIDQ4znWuwBLv7%2BvKnVZpE9Lgrg%2BaM1qJa9Gj%2B87OPhVTW50O39RUoa4hvFGVKFZpX%2BmFpFa9KQF0W0fuQI7oFKGRhJgw3QjY%2BFEg9sZtWeHpttY4B%2FbxO5q4zRBnyvMLLXde4FoA1QTzIuXX8e3eFgfe0I7JY9JidM8Gw5MhhAvKWSeG1B0E0IU1el6gn5fndQWXda%2BXjovDFVZbC7FXaKERAzblbMAPKoEgRL3VwlQYRhASaAPcxtuNIO9emfqBmfxsN0cY8Y1YyT5Z4WHT10bZ4A%2F&checksum=1736311717712a72face1ddf40a5a90f01aac50ce1d6

I can't see how they would work.

They wouldn't. USB is Digital and needs power, 3.5mm is analogue. Our old cars aren't sophisticated enough to make that work.

 

[Sidewaze Samm]

I bought a box on eBay which connects to the back of the business radio and gives aux, usb & sd connections.

I wrote a topic “cheap audio upgrade” but don’t know how to add a link to it on phone :|

Found it
https://z4-forum.com/forum/viewtopic.php?f=2&t=111080&hilit=cheap+audio+upgrade

 

[Wood Butcher]

Thanks, hopefully it gives you another option.