Ok. I've been reading so much on this and still am confused. What I've read so far is that you need the following to change stock HU to aftermarket HU:

1.) Head Unit
2.) Removal Tool
3.) Wiring Harness
4.) Hi Lo Converter

What I am confused about is whether or not I do need a HI LO converter. I understand (from another post) WHY a HI LO converter would be needed for the factory BOSE amps. However, when I went to a "pro" he said because the HU has RCA plugs, and my wiring harness has RCA plugs, I won't need the converter. However, I am hesistant because I don't want to EVENTUALLY blow my factory installed amp. Can someone please clarify this. Below is a picture of what I have. BTW, I have an Alpine UTE-42BT.

Click image for larger version.  Name: hustuff.jpg  Views: 57  Size: 90.2 KB  ID: 1136

So do I need a Hi Lo converter?? If so, can someone please provide a link to where I can purchase one. :-)

Thank you for this great forum dedicated to our lovely MB!! Will be using it a lot now :-)