ganyan po ang wirings ko sa jeep ko which is diesel. may cons nga lang. be sure to fasten the connections tightly sa chassis. a loose connection will cause sparks pag nagbukas kayo ng a/c, ilaw, etc. and eventually drain the battery. another method is not to cut the ground common wire you will use. ilatag nyo yung common wire then just peel the insulator sa spot na doon ipa-fasten yung mga connections. this will minimize loose connections.