Wiring for seat heaters

[bim3]

I ordered a Rostra seat heating kit for my 2000 Sport, and I'm going to install it this weekend. It looks pretty straightforward, but I'm not totally sure about which wires to tap into. Here's the instructions from Rostra:

DUAL-DIAL SWITCH KIT
A. RED WIRE - CONNECT TO ACCESSORY +12 VOLTS - 20 AMP CIRCUIT. NOTE: IMPROPER INSTALLATION COULD LEAD TO BATTERY DRAIN IF CONNECTED TO A CONSTANT BATTERY SOURCE.
B. RED/YELLOW STRIPE WIRE - CONNECT TO IGNITION +12 VOLTS - 5 AMP CIRCUIT.
C. YELLOW WIRE - CONNECT HEADLIGHT/NIGHT LAMP +12 VOLTS - 5 AMP CIRCUIT.
D. BLACK WIRE - IT IS RECOMMENDED TO CONNECT THE RING TERMINAL TO THE VEHICLE BODY USING AN EXISTING COMMON GROUND POINT. IF ONE IS NOT ACCESSIBLE, CONNECT TO A GROUND WIRE WITH HIGH CURRENT CAPACITY.

Does anyone know what color wires I'll be looking for here?

 

[bim3]

Bump- any wiring ninjas out there want to chime in?

 

[Ryan_S]

I don't have the same gen, but I would recommend getting an add-a-fuse thing. It basically piggy backs an existing fuse in the fuse panel by your foot and you can then tie the heaters into that.

Then all you need to do is find a fuse that is in with the ACC. There will probably be some empty ones as well that might work out for you.

Edit: here's a thread with some more info
http://www.toyota-4runner.org/5th-g...l-accessory-power-connections.html#post592030

 

[2StepsAhead]

Reviving this thread, I was told to NOT use add a circuits...I havent received my heated seats yet so Im not sure what their maximum amperage would be, I believe theyre 10a which my friend said would pop an add a circuit. My question is can I add two add a circtuits a 10a each for each seat heater? Not sure how many keyed on open slots their are on the block.

 

[axxman]

I just added aftermarket seat heaters to my 5t gen, there is a kit out there that had stock switches. what I did was use add a fuse to the fuse position that, according to the manual, was for the seat heaters. it had a 20amp fuse, just to be safe, I fused at 10 amp, so far I haven't had any problems after a week useing both heaters at full setting.

 

[fourwd1]

Reviving this thread, I was told to NOT use add a circuits...I havent received my heated seats yet so Im not sure what their maximum amperage would be, I believe theyre 10a which my friend said would pop an add a circuit. My question is can I add two add a circtuits a 10a each for each seat heater? Not sure how many keyed on open slots their are on the block.

That would be correct. The stock wiring is sized to handle a specific amount of current depending on what all is connected to it.
Say the circuit has a 10A fuse protecting it, the max load the wiring is sized for is about the same. Then you piggy back onto that fuse adding something else (your seat heaters) that also draw 10A, and protect them with a 10A fuse. Each thing on the "load" side is protected by it's own 10A fuse. BUT, yow you have a potential 20A load with "supply" side wiring meant to handle 10A.
You get melted wiring at best, fire at worst .