which controls the light in the check control. Search more, you must have it. The 4 wire loom goes from under the grill to the area where the radio is , then along the area under the console to the rear where all the other components are. I assume that your car has the anti theft device installled, then it should have this wiring.
I know that you bought that parts from Beach 911 and he already asked me where these parts are.
I am also checking with my special friend in Germany to find out if this connector is available as sinle intem or not. It is a 6-pin connector, blue/black color, but only 4 pins are connected.
these are the conenctors you need, the left lower one is the one for the LED
complete instruction from Johan on E32, but will help for E34 too.
The pin layout of the various connectors (copied from Johans site)
IR locking components pinout



X262 - Control unit
pin nr. colour Function Connected to
03 RT/SW System power - F31 RPD* Battery
04 BR/OR Ground Chasis ground
05 GN/RT System disable - F17 FPD* (HOT in RUN/START) x255 GN/RT
08 VI/WS System initialize - F51 RPD* (HOT in ACC/RUN/START) VI/WS wire**
09 BR/RT/WS receiver connection x323 BR/RT/WS receiver
10 BR/GN/WS receiver connection x323 BR/GN/WS receiver
11 BL/SW/WS LED: INIT-S x514 BL/SW/WS programmer LED
12 WS/GE Diag link --unused--
17 WS/RT/GE lock signal x255 WS/RT/GE
18 BL/RT/GE unlock/antitheft disarm x255 BL/RT/GE
19 BL/GR/WS Antitheft ARM signal --unused--
20 BR/RT/GE Interior lights activation x255 BR/RT/GE
21 BL/BR/GE unlock/Antitheft DISARM --unused--
23 BL/VI/WS receiver x323 BL/VI/WS
24 BL/RT/WS LED: INIT-E x514 BL/RT/WS
25 WS/VI Diag link --unused--

x255 is the yellow connector on the GM, x323 is the IR recevier's connector and x514 belongs to the LED.
*) FPD = front power distribution box, RPD = rearpower distribution box
**) The schematics spoke of a VI/RT wire but it was VI/WS on my car and on the car the plug came out of. I found a VI/WS wire running to an unknown connector next to the RM. I checked the wire with my multimeter and it had +12v on it in ACC/RUN/START. So that had to be the right one.
X514 - LED/IR programmer
Pin nr Colour Function/Connection
2 RT/SW +12v
3 BL/SW/WS IR: INIT-S
4 BL/RT/WS IR: INIT-E
5 GR/SW/GE --unused-- (DWA led gnd)
X323 - Receiver
1 BL/GN/WS IR: pin 10
2 BL/VI/WS IR: pin 23
3 BR/RT/WS IR: pin 9

Use E34 wiring diagrams and nothing should go wrong
http://shark.armchair.mb.ca/~dave/BMW/e34/

E32 750iL 11/88, E32 750iL Highline 03/90
7 series Tech tips URL:http://tinyurl.com/3486c

• IR LED Program connector (pic) - hurleyandstrings 2008-07-29 18:05:00 (159 views)
  • the circular 'bulb' is the light sensor (url) - shogun 2008-07-30 00:22:22 (88 views)
    • Re: the circular 'bulb' is the light sensor - hurleyandstrings 2008-07-30 17:15:12 (63 views)
      • I found a pic (url) - shogun 2008-07-30 21:03:57 (104 views)
        • Re: I found a pic (pic) - hurleyandstrings 2008-07-30 21:28:33 (124 views)
          • these are for different stuff - shogun 2008-07-31 00:05:09 (61 views)
            • Re: these are for different stuff - hurleyandstrings 2008-07-31 00:55:10 (66 views)
              • Re: these are for different stuff (pic) - hurleyandstrings 2008-07-31 00:58:53 (106 views)
                • best is someone checks on his E34 - shogun 2008-07-31 05:52:33 (79 views)
                  • Was this a US option? - kfister 2008-07-31 09:55:41 (59 views)
                    • no, the socalled switchblade IR remote was sold everywhere (nt) - shogun 2008-07-31 19:22:02 (74 views)
                      • Thats funny it's not in the ETM's - kfister 2008-07-31 20:05:27 (72 views)
                        • Re: Thats funny it's not in the ETM's (pic) - hurleyandstrings 2008-07-31 23:58:01 (101 views)
                          • Look at the '91 E32 ETM! - kfister 2008-08-01 00:58:12 (65 views)
                            • Re: Look at the '91 E32 ETM! - hurleyandstrings 2008-08-01 14:18:23 (58 views)
                        • maybe on E32 only, you could be right - shogun 2008-07-31 22:07:39 (53 views)
                    • Re: Was this a US option? - hurleyandstrings 2008-07-31 16:01:45 (65 views)
                      • DOES ANYONE WITH AN E34 '91 have - hurleyandstrings 2008-08-02 21:18:04 (77 views)
                        • Re: DOES ANYONE WITH AN E34 '91 have - rick540 2008-08-09 05:10:54 (66 views)
                          • got answer from BMW Germany for part number - shogun 2008-08-19 10:13:49 (58 views)
                            • Re: got answer from BMW Germany for part number - hurleyandstrings 2008-08-20 02:54:08 (50 views)
                              • it looks lie the U.S. version E34 always came with RF - shogun 2008-08-22 08:02:52 (57 views)