[FlyingBrickyard]

Originally Posted by mush360

"Text for single DIN radios."
GROM software update for HONDA/ACURA 03-09
GROM Audio sofware: OEM integration

"Display track # and track title where available"
GROM PDF user manual

I haven't received a response yet from the manufacturer to confirm this, but this is according to their website. As soon as I receive confirmation on the use of text for NAV and pre-2009 and post-2009 OEM radios I'll post it up here.

Excellent. I hadn't seen that. Hopefully that's the case, because if it is, this will be perfect.

Honda 2009 OEM USB modules are:

ADAPTER UNIT, USB PN#: 39113-TA0-901 $312.50 USD
ADAPTER ASSY., USB PN#: 39113-SNA-A01 $312.50 USD

Harness to head unit (embedded with the whole in-dash wire harness)??? Requires retro fitting? Maybe, but the harness to the USB OEM module does exist.

Oh I know it does, I was speaking more about firmware support for text display via the "CD changer" hookup in the 06-08 OEM headunits. Based on the ability of all apparent solutions, including Honda's own Musiclink module, to only play from 7 virtual CD playlists and only then display "CD" # and track #, it seemed likely that the inability to display text info wasn't with the modules themselves, but with the way the OEM headunit handled such input. Which would mean that CD#, Track # with no text would be as good as it gets with any pre-09 headunit, no matter what module was hooked up to it.

If that's not the case with the revised GROM module, then the limitation probably isn't with the firmware of the headunit itself and all will be good. I very much hope that's the case.

This DIY is intended for people who won't shell out 312.50 for the USB module alone.

One of the reasons I'm trying to figure out where the text display limitation is, is because if it is with the pre-09 headunits, and not the USB modules themselves, it's likely that even the $300 genuine Honda USB module won't provide text display to an 06-08 radio. In which case those of us with 06-08 radios can either accept that limitation and save a bunch of money with a 3rd party USB module, or just give up on the idea entirely and 'live with' the standard Aux input.

But for the same amount of money (and a few bills less) I could get the whole thing plus slik-screen usb matching stickers for the dash :P a second usb port http://www.frontx.com/for the peeps in the back for way under 300 bucks.

Please don't misunderstand why I'm posting, I think it's one of the best DIYs I've seen anywhere and very much appreciate that you took the effort to create and share it.

I also very much appreciate the desire to save $300+ on the install.

My post was in no way intended as a criticism of your research, the work you did or the DIY you created.

But for me, personally, text display along with MP3 unit control via the radio/steering wheel is pretty critical. If I can't get text display, I'm not sure I'd go through with this just yet. I'm certainly not going to shell out an additional $300 for it either, so since it's basically an 'all or nothing' decision for me, I want to be absolutely certain it'll do everything I want it to do before I commit any time and resources to making it happen.

I do wish I'd had access to this DIY when I installed bluetooth in the car about 4 months back, it would have made figuring out the radio stack and installation a lot quicker and easier back then.

In any case, it's an excellent DIY and a very good looking and affordable solution. If the GROM module really can display text on a pre-09 OEM headunit, I daresay this will be a better solution than the 09+ OEM version.