I installed the GROM bluetooth module in my 2001 HSE a while back. I have the DSP system. The module works through the CD port and functions normally except I notice when streaming music from my iPhone most of the recordings sound distorted. Hard to describe but it sounds like the speakers are buzzing. This does not occur when using the FM radio at any volume. It also does not occur when I stream my music to other BT devices. There is not much to the install other than removing the CD plug and installing the GROM plug so not sure what is going on here. I did not install the AUX plug as I did not want to have to physically connect my phone. Any suggestions would be helpful.