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Discussion Starter #1
Repost from new member forum, hoping this is a better place for answer

New to Forums, New to Xterra, in need of help!

I just bought a used Xterra 2002 SC. Forest green with grey trimming.
She's a 4x4 with premium sound.

I've been looking through every forum and discussion topic for an issue I'm having with a new H.U install.

Although everyone says the 2003 has the premium sound with 6cd changer and Rockford F. Amp . My 02 also has this.

So far it's created an issue with the new head unit because the harness I bought . Metra 70-7550 does not match the truck side only the new head unit (kenwood ddin) when I installed I had no sound.

This was because the sound harness would not connect to the after market HU. Realized he problem was the harness.


I just ordered a new harness (Metra 70-7551) this has rca plugs that will run my speakers as well as two harness that will connect to the new H.U

Does anyone have experience with this problem? Am I headed in the right direction?

Behind the original h.u was a factory amp that caused this issue with my harnesses.

Truck side -> hidden amp behind original HU has 2 female harnesses with attached 2 male that split to 3 -> to plug into factoy HU .

When replacing with a new HU what harness would you recommend I'm using a kenwood DNX571 HD

I've never seen a HU with 3 harness adapters and all the after market harnesses are only 2 harness kits

The attached image is a poor shot of the hidden amp and its 2 female harness connectors. The wire cluster has 2 males that fit into the hidden amp, 3 more males that connect to factory h.u and 1 harness for the hazards
 

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The 7551 should be right. The 3rd harness (2 wire if I remember right) is for the steering wheel control. I plugged the RCA connectors into the low level outputs in the back of my aftermarket HU and it worked fine with the RF system. I also had to install Ground loop isolators to get rid of the loud popping noise when switching modes and turning on and off the unit. I hope this helps.
 

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Discussion Starter #3
The 7551 should be right. The 3rd harness (2 wire if I remember right) is for the steering wheel control. I plugged the RCA connectors into the low level outputs in the back of my aftermarket HU and it worked fine with the RF system. I also had to install Ground loop isolators to get rid of the loud popping noise when switching modes and turning on and off the unit. I hope this helps.
Thanks for responding!

Is there a way I will still be able to use my steering wheel controls with this install?

Also the customer service people from crutchfield (who were great btw) also sold me a
Scosche SLC4 Line Output Converter
Will I need this if the harness has rca that power the speaker into my head unit?

Is there a certain ground loop iso I should be looking for?

Thank again for your help. I'll be doing the install tomorrow night and Friday morning
 

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Follow up from
Above.

I contacted crutchfield customer tech support (can't compliment that company enough) product expert said the sosche product will work as a ground loop iso. Hoping for the best here that it all works the way described.
 
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