I've been working on this recently
finally had the conversion done on my 1999 Dodge Avenger
same conversion could be done on a 2GNT 1996 and up (impossible on a 1995 )

video of a test drive

YouTube.com

basically you need a TCM from a chrysler cloud car with autostick
you need to splice 2 wires in the TCM connector on pin 5 and 44 for autostick UP (5) and DOWN (44)
you need some kind of momentary switch
and when you pull line 5 or 44 to ground the transmission shift
no need for a special shifter when you are in D you are normal and in 2 the autostick is ON

read my ASEC thread for details
http://aseclub.net/forums/index.php?/topic/127522-starting-over-with-black-beauty/page__st__50

Alain

Right on, we were talking about this in chat a few months ago; Whether it would be feasible or not. Nice work.

easy to do actually I was surprised

1 glitch the speedo reads twice the speed because Chrysler doesn't use the same number of pulses , our cars have mitsu made speedo but chrysler made TCM the software in our own TCM is different to take care of that difference

2 solutions
1 going to the stealer and have the TCM flash for a change of the pinion factor by 2 = $$$$
2 learn to use a soldering iron and built a simple Divide by 2 circuit using a CD4018 IC and a power transistor (about $5 total)

I didn't had the time this afternoon to install my circuit I will do that tommorow afternoon

Alain

YouTube.com

second clip I just made
pushing the momentary switch up = shift up
pushing it down = down shift

the switch is a SPDT spring load with momentary contact

Alain

Nice work, Alain. The videos give a great demonstration.

Yet another epic post by Alain!

there's one important detail that I overlooked when I wrote and that I can't find the answer now

in 1996 all 420a version A/S and 2GNT , had the TCM moved from the engine bay to inside the car behind the radio
while the V6 A/S kept the TCM under the hood
all the chrysler cars with A604 also kept the TCM under the hood

I'm double checking my books this morning and can't find if the TCM inside the car is a plain chrysler TCM with the usual pinout and connector or if it was a special version made just for the 420a A/S and 2gnt

if it's not a stock TCM this would kill any chance to autostick your 2gnt

the video was made with my 1999 V6 Dodge Avenger, my 1995 2.4 Avenger beeing in car heaven now

Alain

looking at ebay I see the same TCM so far

inserting wires in the connector was a pain to do under the hood I can't imagine doing it under the dashboard ha ha

Alain

major bug tonight driving on the highway
it's not just the speedo showing the speed
the tcm thinks you are doing twice the speed too
I hit the 130 mph speed limiter while doing 65 mph and the engine cut

so the electronic circuit to fix the speedo won't be needed but a session with a DRB-3 scan tool will surely be to change the pinion factor in the software

Alain