Phone plugs as in phone jacks

[JayRyan]

Hey guys, so when I bought the car they previous owner had a Valentine hard wired via phone jacks in the car. I have two phone plugs available that tap in to the car's power and thought it'd be sweet to use 'em for my phone's dock but doubt thy even make a micro USB to phone plug cable?

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[MT-Getto]

See if they have 12V on them. If so you should be able to get charge power from them.

[JayRyan]

Right, that's what originally powered my radar. Do they make such a cable though?

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[sneakyboy1]

I've never seen an RJ11(phone line end) to USB adapter. Just get one of those USB cigarette adapters, take it apart, hardwire the phone cable into it.

[MT-Getto]

I kinda wonder how an RJ11 would like handling the current draw from charging a phone. Either way you'll just need to cut off a phone wire or use an Ethernet crimp tool to make a 12v connection. Use a probe or multimeter to find out which pin on the RJ11 is hot and then, with your battery disconnected (so you dont smoke your meter), you could look for continuity to ground on another pin. You'll still need a USB adapter to get the 5V that USB uses. I've found some chargers to be finiky with motorola and apple phones. Seems like they need more than just a +5v.

[JayRyan]

I decided I didn't want to mess with it and pulled apart most of my driver's side interior last night to run the cig lighter power cable and aux adapter line to where I wanted to mount the phone doc.

The phone plug bay has Main and Accessory printed on it wired to a 5v fuse and back to somewhere behind the stereo. I discovered my floor light under there isn't working and I need to finish my boost gauge install.

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