That is good to know. I'm actually looking for this product for my 2013 Edge with Sony system.
When I put volume higher than the half only the trebble and mid range get higher. The bass remain like at half volume and something is really missing.
Do you think that change can really help for global sound or this is cause by the sub amp.
I really want to see your installation photos.
Does this is connecting directly with OEM stock wire?