If that's one of their early units - it's junk. I put one in my 07 when I first got it & had to remove it - totally screwed up my head unit - messed up display, kept freezing & had to completely shut off & restart, etc. I don't know if their newer generation ones are better. I seem to recall that hcvone had some of their early units & found that they had a problem with pins not being fully seated in their connectors.
I put a PA20-GM in my 09 (connects to the XM box - same as the Coastaltech). It's not perfect but it functions as advertised & does the job adequately.
I put a PA20-GM in my 09 (connects to the XM box - same as the Coastaltech). It's not perfect but it functions as advertised & does the job adequately.