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Enabling rear speakers

617 Views 4 Replies 4 Participants Last post by  Steves_77
I installed rear speakers as described in the forum, now how do I get them to work, the results of googling it were take it to a Ram dealer.
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2021 Promaster 2500 high roof 136wb in white
419 Posts
Discussion Starter · #4 ·
I followed the directions in the video
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but after turning the ignition back on it says the rear speakers are not coded, any ideas?
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