I have around 108k miles on my svt. Just recently my engine began to misfire in lower rpm's and backfire. The unusual thing about this is when it misfires it causes my speakers to cut in and out and become static but only happens while the engine misfires. I ran a code reader and it said misfire in cylinder 3 so I replaced the spark plugs and cables and that did not fix the problem but cleared the code. I have heard a shot timing belt could cause problems like mine (misfiring and electrical) is this true? Or could it simply be an electrical problem? Please help me fix my car! Haha