1993 Astro Radio Problem

I had bought a new radio and was putting in the dash kit for it and caught a spark i believe from the constant and ground touching at first i thought i fried the radio so i tore it apart to get my CD out of and threw it away so i went and bought a new wire harness for the stock radio just now got it wired back up and it still doesnt work i checked the radio and acc. fuses and they're fine what else could possibly be wrong with it.... is there another in-line fuse from the constant i could've blown?

you need to check the cig. lighter fuse or the dome light fuse

checked it... works fine... but now that i think about it it would be from the constant line not the ignition line what fuse would i check for that?