Review on Metra 70-7301 Radio Wiring Harness for Hyundai and Kia 1999-2008 by Jason Lee

Product worked great. I've used literally thousands of Metra wiring harness adapters because I've been installing car stereos for over 30 years and in all that time I've never had a problem with them. The installer for the first time more than 2000 vehicles has to overcome many obstacles with the help of the knowledge base. Most of this can be found in the steering wheel controls, factory amplifier adapters and in the wiring of the heating/air conditioning or navigation systems. Documentation is based on speakers and performance. What about the other 25 wires? I would like Metra to post the factory wiring codes on the parts diagram. The hardest part is finding Key 1, Key 2 and KeyGrnd. As a side note, you can always use the Axxess line of products with Metra kits, and there are factory interfaces for a few other connections. However, all Metra products have a toll-free number and their technical support is second to none. Why only 4 stars? Documentation; Customer service is 5 stars though. YOU WILL NEVER HAVE A BELT PROBLEM