Basic Wiring diagram for Headunit to amp to sub.

[TbM]

ahh ive never noticed any in mine LOL, ill take a look under the carpet in the footwell and find a the respective grommet from the outside n give it a shot.

Notice from your other thread your having trouble locating a place in the firewall to run the power cable.
Heres a link, if you search alot of this has been covered before.
http://www.fitfreak.net/forums/1st-g...-firewall.html

thats the plug i was talking about by the way, i didnt notice the labels before as i was looking at it during the night.

Yeh hi level input is what i was refering to, i call it speaker level input, can use it if you dont have rca's on the headunit but i prefer to use rca's