Hello municipality, have the problem with my T89 at the moment that the battery is constantly sucked off and I have therefore for quite a while always clamped down the minus pole due to lack of time. Short history to facilitate possible limitations: At the beginning of the year my steering pole switch was defective, for this I had here in the forum also wrote a post:http://www.motor-talk.de/forum/switch-down-light-defect-help-to-repair-t2503819.html After this outand built and repaired, it also worked perfectly again until the beginning of May. At the moment I suspect two things about the history with the battery: First I immediately thought about the switch, because one day I switched on the light and had to find that the speedometer lighting no longer works. After I shut down the car after this ride, the battery was empty the next day. I had of course immediately the battery due to the time connection Switches are suspected, because the tach lighting is switched on via this. I have meanwhile also got a new switch, but with this the same problems continue. In other words, the speedometer lighting does not work and the battery is empty overnight. The second suspicion lies on the retrofitted radio remote control, which is mounted in the trunk aum at the servo pump. I have found that now only one turn signal side by pressing the remote Bedi I could also imagine that this is somehow the culprit. What do you mean by that? Is there any evidence in your eyes that it might be one or the other? How could I find out this relatively uncomplicated and reliable? (Measurement is available)