Quick question on Metra cable adapters for top dash speakers

[407Lou]

So I ordered some Infinity 3032cfx 3.5" for the top dash panel along with the Metra 72-7902 adapters.

I've read on here that you may have to swap the wires to the pos/neg speaker terminals to correct the polarity as the Metra cables do not come correctly made (polarity-wise) for the dash speakers. Can someone please confirm if the adapters are correct as made or the wires should be swapped.

Thanks,

Lou

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[Pilot143]

I'm in the same boat, except now I'm out of town and my new speakers have arrived!

Use the battery test. Connect a battery to the terminals. The positive terminal will cause the speaker cone to move out when touched to the positive side.

 

[407Lou]

Yeah was thinking of doing that. Chatted with Crutchfield yesterday and they sent me this...

 

[407Lou]

So they are definitely wired backwards. And you can't simply connect the blade connectors to the opposite terminals on the speaker as they are different size terminals.

I removed and swapped the wires from the Metra plug end using a small jewelers screwdriver. There was another thread on this somewhere.

The OEM dash speakers look like they came from a 70s transistor radio. Infinity def sounds clearer and have a fuller range. They do not drop right in however. I had to bend one end of the mounting holes tabs up to get them to fit in properly.

 

[Jebiruph]

https://www.jlwranglerforums.com/forum/threads/metra-speaker-harness-polarity.49506/post-1101674

 

[407Lou]

https://www.jlwranglerforums.com/forum/threads/metra-speaker-harness-polarity.49506/post-1101674

Yes, thanks for posting that! That's what I did to swap the wires on the Metra plug.

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