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E89 replace cupholder phone tray w/full oddments & wireless charging?

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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Christopher72
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E89 replace cupholder phone tray w/full oddments & wireless charging?

Post by Christopher72 » Fri Sep 23, 2022 2:35 am

I can't believe how ridiculous the armrest covered cupholders are! First of all, how do you even reach a drink if you want it, and they aren't substantial enough to prevent a normal tumbler from tumbling.... :headbang: SMH.. who designed this? The cupholder in the passenger's seat is much more useful for a nice https://www.yeti.com/drinkware/tumblers ... 01032.html. Additionally 2011 phones were tiny things.. my extra large palms prefer a plus size phone that's too wide for the cradle side.

I've read Dave's, Roddy's, and a few others threads on the topic (well done) and I've decided to pick up a standard full-size oddments tray and matt. My question is thus: Has anyone created a mod for the oddments tray to implement a wireless charger underneath the matt, using the existing phone cradle wires to power the charger? Any ideas how to approach that? I do have access to filament and resin printing for custom work to integrate into the full-size tray.

Thoughts and guidance welcome. Thank you.
Christopher
2011 E89 Sdrive35i - Blue, Beige
(9) 1997-2002 E46 convertibles, several colors - gone
2000 E89 540 black on black -gone
(2) E36 roadsters (1996 red, 1998 blue) - gone
Pre-production E36 (red) - gone

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AnubisZed
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E89 replace cupholder phone tray w/full oddments & wireless charging?

Post by AnubisZed » Fri Sep 23, 2022 7:35 am

This is something I considered doing for my wifes phone (mine doesn't have wireless charging), but due to the little amount of time she'd ever use it I decided not to, but I did research into it......

So yes it's possible, you could go down a couple of different routes here.

1) Buy a pre-made charging mat that has a USB connection. I would say then connect the wires, but USB is 5v whereas the incoming supply is 12v. You could use an car USB converter (they normally come in 1 or 2 USB's attached) and that would power the changing mat. Just open the lid place your phone on the mat and away you go! :thumbsup:

2) As you could 3D print then this could be an option, all though a lot more work but then it would be a custom fit. Using a coil that already has a 12v pcb controller attached would negate the need for anything else.

Regarding power supply from the car, and referring to the connector underneath the Eject box/ centre console...

12v+ is on pin 5 and 12v- is on both pins 2 & 13 (both same size wire to the same ground point). It's running on 0.75 wire and fed from fuse 13 which is a 10amp supply, so should be adequate for the job :thumbsup:
Dave
2011, 23i, Grey with Red leather. 8)

E89 Cruise Control "How-To">> viewtopic.php?f=46&t=107989

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Christopher72
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E89 replace cupholder phone tray w/full oddments & wireless charging?

Post by Christopher72 » Fri Sep 23, 2022 5:22 pm

Dave,

The research begins! Thank you for the nudge with options. I'll post on it again as I make attempts.
Christopher
2011 E89 Sdrive35i - Blue, Beige
(9) 1997-2002 E46 convertibles, several colors - gone
2000 E89 540 black on black -gone
(2) E36 roadsters (1996 red, 1998 blue) - gone
Pre-production E36 (red) - gone

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E89 replace cupholder phone tray w/full oddments & wireless charging?

Post by Smartbear » Fri Sep 23, 2022 5:28 pm

My car has the storage tray, i just placed a wireless charger that my phone sits on it just plugs into the USB port at the end :thumbsup:
Rob
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e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

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