passing wire to engine bay - Toyota Nation Forum : Toyota Car and Truck Forums

razdigital · 12-11-2009, 03:45 PM

Car: Camry 2003 with factory head unit no amps or cd changer.

nee do install a hd tuner to hook up to the stock head unit. Been looking for ways to power this thing up other than splicing up the head unit harness (which I really don't want to do) the other option seem to be drawing power from the battery.

This is my first electrical install in a car so go easy on me.

1.What is the best place run the wire from the cabin to the battery terminal?
2. Where is the best place to connect the ignition wire from the device?

Anything step by step direction with especially pictures would be helpful.

***bandit*** · 12-11-2009, 03:54 PM

Why not tap into cigarette adapter? Its much safer and much easier to access

razdigital · 12-11-2009, 04:07 PM

some posts were saying that by tapping the cigarette adapter that noise interference is heard on the stereo.

CamrySExxx · 12-11-2009, 04:43 PM

Quote:

Originally Posted by razdigital

some posts were saying that by tapping the cigarette adapter that noise interference is heard on the stereo.

A simple ground loop isolator will solve that problem. Also you could look into the fuse box. Just tap into a fuse that would be suitable. You could use a piggy back fuse holder to do so.

carlo$ · 12-11-2009, 09:12 PM

http://www.youtube.com/watch?v=bUyvmfK50ZQ

CamrySExxx · 12-11-2009, 09:13 PM

^ LOL that vid made me laugh for some reason

Don M · 12-12-2009, 09:11 PM

There is another rubber plug above the accelerator pedal the has nipples projecting from the paasenger compartment to the engine bay. Pierce one of these nipples and pass a wire forward coat hangar and electrical tape is the bomb, here. . Now, where to find a switched 12v+, that's the next challenge. You can go to the battery + terminal but add a fuse there. It's alsays on. I used this to add 2 cig sockets to keep the cell phone happy. The head unit splice might be the answer for a switched power supply.

carlo$ · 12-13-2009, 10:14 AM

use the cigarret lighter for switch supply, it can handle up to i think 15 amps. check the manual.

Redline_Me · 12-13-2009, 12:19 PM

Quote:

Originally Posted by carlo$

use the cigarret lighter for switch supply, it can handle up to i think 15 amps. check the manual.

I connected mine to the cig lighter fuse so the amp would shut off after the ignition was off.