30 minutes free tech support is included with every purchase. Time beyond 30 minutes is billed at $75/hour. This includes time spent researching your issue, writing emails and talking on the phone.
I am happy to provide technical support, but please anticipate paying for for my time as part of the cost of your project. There are many reasons that someone might encounter difficulty installing my products, and most of these are beyond my control. (Technical experience, condition of the equipment, random electronic failures.) Tech support time is billed whether the issue is believed to be yours, mine or one of my suppliers. My products are superb, and I make every effort to ensure their quality. I want as many people to succeed as possible.
Alternately, consider asking your question on a forum such as DIYAUDIO.COM. Send me a link and I may comment on the thread.