2001 Honda Accord dash lights

I installed a pioneer cd player in a 2001 Honda Accord..i used the American International HWH-806 wiring harness and the cd player works great, but the dash lights won't come on. I checked all the fuses and they are fine. I was reading a post from a while back and the guy said that this happened to him and it turned out he blew out his multiplex control unit because of the illumination and dimmer wires. If this is what happened in my situation is the multiplex cu fixable or replaceable without going to the dealer? Thanks David

Did you also check the fuse block under the hood?There is no such thing as free installation!

I did check that fuse box also..I know a guy at a shop and i took the car there and i did blow one of the control units he said he would get me a new one for cheap