I am wanting to put in an aftermarket radio and relocate it down to where the stock cd player is at. My question is do they sell cable extensions since the harness wont reach or is that something I will have to fab?

 

They sell extensions but they are expensive. Create your own since it's only like 12 wires. 8 for speakers, 2 for power and ground, 1 for amp. switch, 1 for dimmer. Antenna is usually long.

 

There is small clips on the back of dash that holds the stock harness in place and out of the way. if you unclip those, with the after market harness+stock harness, you should have enough to move it down there. i've done it many times this way.