i went to install an aftermarket hu in my z to replace the bose system. the store gave me the wrong wiring harness so i put the stock hu back in till i got the right one and now the insturment panel doesnt work. i checked all the fuses and the wiring and it all seems to be hooked up right . what could be the problem. any help would be very appreciative. thanx

 

let me reword that. the intrument panel works it just doesnt light up. i have no light anywhere in the dash.