speaker polarity

[LBX2G 10+ year member]

Can some body tell me how i can find out the speaker polarity of the indoor wires in my car //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif

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[BOXSTERSGUY 10+ year member]

This is how I do it, First remove all door panels and rear panels so u can visually see the speakers,then remove head unit to get at stock wiring harness,next get urself a 9 volt battery and some speaker wire or duct tape and connect wire paying attention to +,- to 9 volt then take wire and touch to ends of stock speaker wires paying close attention to cone movement ,when cone moves out its pos ,in its -,not only will this help determine polarity but also location of speaker fl,lr and so on.Also if u have a car that they make a harness adapter for I'd go that route, And don't forget to disconnect - terminal of car battery!!!or its fuse blow city!//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif