About the Metra 72-5603 Speaker Wiring Harnesses
What's in the box:
Other info:
- MFR # 72-5603
- Item # 120725603
- California customers: Please click here for your Proposition 65 WARNING.
More details on the Metra 72-5603 Speaker Wiring Harnesses

Product Research
Features
Metra Speaker Harness: Metra speaker harnesses prevent you from having to cut your vehicle's factory speaker plugs when replacing your factory speakers with aftermarket car speakers. Each speaker harness features two female quick-slide connectors on one end to attach directly to your new aftermarket car speakers, and a proprietary Molex connector on the other end that connects to your vehicle's factory speaker plug.
Quick-Slide Connectors: The Metra speaker harness is equipped with large (positive) and small (negative) female quick-slide terminals. These quick-slide terminals fit directly onto most aftermarket speaker terminals (slight crimping may be required). In rare cases when the quick-slide terminals do not fit your speaker terminals, you may need to replace the quick-slide connectors on the Metra harness with the correct size terminal.
Note: No installation tools, hardware, or accessories are included. All are sold separately; please see the Accessories tab for recommendations and availability.
Quick-Slide Terminal Measurements: The positive female quick-slide terminal measures 0.205" (inner width) and the negative female quick-slide terminal measures 0.115" (inner width).
Wire Code Chart: Two identical Metra speaker harnesses are included.
Wire Color | Function |
---|---|
White | Positive |
Black | Negative |
The Metra 72-5603 Speaker Wiring Harnesses replaces these items:

Metra 72-5604 Speaker Wiring Harnesses
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Customer Q&A
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They match up and plug in just fine with a little modification to truck tweeter harness, but will still plug in stock tweeters. 2 minutes and some plastic removed, simple!
Samson from Saint Paul, MN