shouldn't your red wire (power) from the head unit be hooked up to the blue/yellow wire on the harness?

 

I'll give it a shot tomorrow.. Getting kind of late. I will update tomorrow as well. I don't know man. The harness maybe is wired wrong.. Scosche got it reversed maybe? I'm just connecting it the way the harness was designed.

 

cool. let us know.

 

Oh Sh**. I think I know whats wrong. I was supposed to connect the yellow wire to the gray. On my harness the gray wire was cut way too close to the connector. So i extended the wire from the other end and connected it to my red. Think your right It's supposed to be connected to the yellow. My bad... I hope thats right but I will update you tomorrow. Feel free to i.m. me on aim if u want.. aiite l8 You must be right dude. I remember I think when I cut the wire accidentally I was looking at both harness ends and thought the gray wire ended up at the red. I got it reversed I guess... I'll fix it tomorrow.

 

Yeah, yellow is usually the remote start to power on when in the ACC position. that should be connected to the gray and your red wire should be to the blue/yellow.

 

Is this correct? I've just checked.

Aftermarket Harness: Stock Harness:
12 Volt (Ignition/Acc) (red) >>> gray (radio switch)
12 Volt (Batt/Memoru) (yellow) >>> blue yellow (radio 12v)

 

Hmm hmm.. Checked where the yellow wire goes to.. Seems to be going to the blue wire.. I repeat blue wire with NO stripe... Damn this harness... Seems to have been made incorrectly.... www.metraonline.com .... harness i bought from best buy

 

Something random: Got a $50 gift card from scion by taking their survey over the phone.. was going to hang up on them... didnt tell me i would get anything... hmm.... what to get? wheel locks?

 

Blue/yellow (blue wire with a yellow stripe, in case u didn't know how to read it) if that is your constant 12v wire, meaning it constantly has 12volts, alot of people call this your memory wire, its what allows you to set your presets and clock on your radio and they stay there. It should be connected to the yellow wire on an aftermarket radio (alpine, pioneer, etc.) The red wire on your aftermarket radio is your ignition wire or switched wire, it loses power when the key is SWITCHED off, so your radio turns off when you turn the key off, connect it to the wire labled 12v/switched/ingnition in the diagram above. If your red wire has power and the yellow wire doesn't have power, it means you probably have a blown fuse somewhere. The fuse that is usually labeled radio fuse, most of the time is a switched/ignition fuse, if it has power than the radio fuse is probably fine. Since your yellow wired doesn't have power than you have a constant 12v fuse that is probably blown somewhere. I dont' know about the tc, but a lot of cars have more than one fuse box.

 

ok i just checked the wiring data base my work has, and you are right, the constant 12v wire color it gives for a 05 TC is Blue, no stripe, and Gray for ingnition

 

Yellow 12+ MEM/ALWAYS ON
Red 12+ SWITCH
Black - GND
-----------------------
Get a volt meter it your not sure. Its the easy way to test it.

 

ok so looks like my wiring is fine.. can anyone tell me any fuses that possibly can impact the radio besides the radio fuse itself?

 

i think it was posted earlier, but if its your constant memory fuse, the dome light fuse is always good, and depending on if it is switched or not, you can try the cig lighter, if even they look fine, try replacing them with a new one, can't hurt anything

 

the dome light fuse seems fine.

 

last thing that happened was something shorted my amp and my stock deck just stopped working.

 

ok, if something shorted on your amp, then lets try going from there, what did you have the remote wire for your amp hooked to, and 2, did you have a constant/battery wire running to the battery and was there a fuse inline with it?

 

Problem fixed guys. I found out the battery memory wire is bad at the other end of the harness. Instead of fixing that to get my sound system working i routed the battery memory wire from the aftermarket harness to a constant source i found in the left hand fuse box. Used a splice connector to connect with my neon which has constant power. Still the harness ____es me off. Other end of wire must be bad.. maybe since the short i had from the amp probably caused the plastic connector to expand and heat resulting in a bad connection.

I'm happy now hearing my 2 12inch subs hit hard in the back. Not bad subs at all. A 500 watt amp and 2 12" patriot speakers (made by octacon) i think i spelled it right. The people that make that enclosure guranteed to make your subs sound 4 times more powerful. Not bad deal. 500 watt amp and 2 subs for $200.

Isn't pioneer coming out with a deck that will fit the steering wheel adapter on a tC?

 

Also, if you drop enough juice through a small gauge wire, you can burn the wire itself, quick. You can literally weld metal with the current from a 12v auto battery...

I'm glad nothing else got taken out though, and congrats on working around the problem.

 

Well the neon is 12 volts and the radio is so I gues there shouldn't be a problem?

 

Good job man, glad you got it working after all the confusion (I'm sure I didn't help much there lol). It shouldn'y be a problem routing the wires the the neons. I'm using the same technique but reversed (Neons splicing into my stereo). Works fine for me.