I did read through that one. The main difference being that I implemented about a $70 solution that didn't involve replacing the head unit and still added the simple 3.5mm AUX jack most people want, adding Bluetooth was just the icing on the cake.
Did I mention replacing the factory head unit could cost $$$$?
No need to mention that....I've done it twice, so, I'm well aware of the cost, probably more so than you.
I finally got tired of dealing with refurbished head units from Chrysler that never seem to last more than a year or two, so, I bought a new Pioneer AVH-X490BS CD/DVD RDS AV head unit with a Sirius XM Receiver.
It took me a while to learn how to navigate through all of the sub-menus & learn where all the different features were located, but let me tell you, it's really nice having the reliability of a brand new head unit again - vice one that was made 10 or 12 years ago.
It has Bluetooth (which my factory 430 CD/DVD/MP3 HDD MyGIG unit did not) as well as built in adjustable crossovers, a 13 band equalizer, bass boost and all the other bells & whistles, with the exception of navigation - which is an option I chose not to get since I already have a separate GPS unit that I have lifetime map updates for. It even came with a small remote control.
But anyway - back to the original point
, I wasn't sure if maybe there was some information in that other link that might have been useful to you, so, thought I'd throw it out there.