Yes, if it was like the wife's car and would lock and unlock as you went in and out of drive it would be worth it, but since there is not a clear way to set it up to do that I dont really want it locking every time I start turn the key to the "on" position
Not sure if there is anything we could use as a trigger to make that happen.
Maybe something with the starter interupt when it is in drive or reverse might work...
Sorry your unit didnt show yet.
Everything happens for a reason...we just dont always know what that reason is.

__________________
Christopher Henkel
1990 190E 2.6 - Arctic white SOLD
1986 190E-16v - Blauswartze
1993 300CE - SOLD
2003 W208 CLK 320 Cabriolet - Magma Red

Im actually thinking of a connection from the Neutral Safety Switch, where a Lock trigger signal is sent for the Drive position. The Neutral Safety Switch should be able to send a signal for the Drive position and connect this to the Omega ignition signal wire. Reverse & Drive would send a double signal when putting in gear which would defeat the purpose here (reverse-neutral-drive gearshift positions = lock-no action-unlock).

Im also thinking of my wife for this setup. It would be a single trigger to lock when the gearshift is in drive position (unless its already locked). Pulling the Drivers handle will automatically Unlock all doors. For wife safety, only unlock when a purpose event happens (already provided by OEM system).

Omega default settings would be:
Doors Lock With Ignition "On" : Default ON
Ignition "Off" Unlock 1 & 2: Default OFF
Connect the Omega Ignition wire to a signal wire from the Neutral Safety Switch

Now, does the Neutral Safety Switch actually send useful electronic signals??

The Neutral Safety Switch wont work!!

Tested it for a signal and it only controls starter activity signals much like the ignition switch.. Just an earlier and much shorter signal...
I will just not use the Automated Lock/Unlock features... Unless someone here has other ideas!!

Finally, Installed my Omega REC-11+ unit and a siren.

BTW, the 95 C280 OEM locking system is actually a 3-wire system. Both front doors use the same 3 wires and the signal is not on a single wire.
There is a Lock, Unlock and Ground wire that controls the locks. This actually makes the install easier.

The overall install was relatively easy. The hardest and time consuming part was finding the C280 connection wires. Installed the unit under the dash.

But here's the 95 C280 connections found on my car (as yours may be different):

----Kit Wire--------------------C280 Location-------------
1. 12 VOLT Constant.............Red Wire – Power Block (under gas pedal)
2. Chassis Ground.................Brown Ground – Left Floor Wire Panel
3. Ignition...........................Violet/Blue - Steering column (used diode)
4. Trunk Release .................NOT USED (requires a trunk release popper)
5. Starter Interrupt .............NOT USED (OEM Alarm Starter Kill relay installed)
6. Headlights.......................Gray/Red (+), Headlamp switch (used relay & diode)
7. Parking Lights..................Gray (+) & Gray/White (+), Headlamp switch (used 2 diodes)
8. Dome Light Output............Front Door Pin Switch - Brown/Gray (-), Left Floor Wire Panel (used diode)
....................................... Rear Door Pin Switch - Brown/Gray/Yellow (-), Left Floor Wire Panel (used diode)
9. Power Lock Pulse..............Black (-), Left Floor Wire Panel
10. Power Unlock Pulse #1.....Blue wire(-), Left Floor Wire Panel
11. Siren............................Cut the Piezo wire (+) to Siren (+) wire (using relay)
12. Signal Antenna Wire........Installed under the Weatherstrip of the Front Drivers Pillar, held in-place with RTV

Hopefully, this will help someone else doing this!
Everything works: Headlamp/Parking Lights flash, Lock/Unlock, Panic, Dome lights & Siren churp.
Now that Ive found the Door Pin Switch wires, Im thinking of installing another set of relays/diodes to "Keep the Radio ON until Door Opens" mod.

KEYLESS ENTRY IS GREAT ! ! !

Good job.
I still haven't found a suitable chirping horn for mine, but it's still on my list, and I have the wiring all hooked up. (maybe right after the water pump that is oozing).

DG

Thanks. The siren only chirps when unlocking & locking. Otherwise its quiet (even in panic mode). But it is better than the peizo which cannot be heard 5 feet from the car.

I also took the advice from Chris. Replaced the dome lights, reading lamp, and trunk lights with LEDs ! ! They look great and Zenon White is very bright. These were cheaper prices and shipping (about $30):
Dome & Trunk Lamps (4): http://cgi.ebay.com/ebaymotors/1pc-42mm-211-212-214-HP-LED-Xenon-White-Festoon-Bulb_W0QQcmdZViewItemQQ_trksidZp1713Q2em153Q2el1262QQcategoryZ33713QQihZ011QQitemZ320223124451QQtcZp hoto
Reading Lamp (this actually fits): http://cgi.ebay.com/ebaymotors/2pcs-168-194-Refractor-5-Power-LED-White-Wedge-Bulbs_W0QQcmdZViewItemQQ_trksidZp1713Q2em153Q2el1262QQcategoryZ33713QQihZ011QQitemZ320223124346QQtcZ photo
The LEDs took about a week to arrive from Hong Kong.

The relays are wired up for the "Radio ON til Door Open" mod. Planning to install next weekend. After over 12 years, this car is finally getting some actual creature comforts.