Hello -

Thanks for reading and possibly answering my post. I have a couple of questions and one issue with my 2007 Outlander MMCS:

Questions:

1. Who provides the underlying data for the navigation system? Is there an update available yet from the data provider or Mitsubishi?

2. Will the Nav update also update the audio system, there are many features and functions that are missing

Issue: I am having an issue with my Sirius tuner. It seems to have a very small buffer. For instance, I live in San Diego. When I pass under a freeway interchange, I loose my signal. It seems the factory unit has a buffer of 3 seconds. When I had XM, my XM tuner had about a 10 second buffer. So when the car lost sight of the sky, the tuner would use the buffer. Going under the same interchange, I would not have any interruption in programming

My question: Is there anyway to install a buffer unit to the factory Sirius tuner so I do not loose programming?

Thanks!

Im wondering if theres a update to, theirs few streets I went down and it wasnt on the gps. I have ver 2005

The Nav update will have to be bought from NAVTech. I think they are around $200. Everything I have heard Mitsubishi will not pay for this. I am sure yours is 2 - 3 years out of date. Mine was 2 years out of date when I nbought my cars. I am not sure if they have one out yet though. I did hear however that they issue a new one every 2 years.

The Nav update will not update the audio system. that would need to come from Mitsubishi. I wouldn't count on it.

The Sirius issue is common of course. but you have a good question. More buffer would be nice, but I live with it.

Good luck

What features are missing exactly?

"buffering" is an interesting question. in short, no. not even if you replaced it.

Here is a long and interesting answer.

Satellite radio consists of ground and satellite based stations. The idea is that when in dense urban areas (when satellite pretty much breaks) these ground stations fill in the holes.

XM is slightly more robust because the system uses two stationary satellites (in which one transmission is slightly delayed to the other, adding another layer of robustness and diversity) in addition to ground stations. When one satellite is blocked, the other may be able to get through, or a ground station, etc.

Sirius relies on only one satellite at a time over the US with a little overlap (will change later this year/next year) and ground stations, making the system slightly more dependent on ground stations filling in gaps. They actually have 3 orbiting satellites that spend about 16 hours over the united states in a rotating fashion.

Buffering comes into play when you have multiple sources of streaming audio data. If data is lost or corrupted, these other sources can fill in those missing audio frames, and repair the audio before it ever hits your ears. But since satellite radio is only one-way, if no source can get that data to you for a particular instance in time, and the error cannot be corrected with error correction, you are simply out that part of the audio -- even if you had a 10 hour buffer.

There are a couple of things that can decrease your performance of picking up weak signals from one Sirius install to the next: 1) poor/damaged antenna 2) bad antenna placement 3) lossy coaxial cable for antenna connection to receiver 4) not very good receiver design/bad radio sensitivity 5) bad performance in high multipath environments

All of these are out of our control in the MMCS. Id complain to Sirius, have them log it as a problem spot, and who knows....maybe they'll improve repeater coverage in that particular location if enough people complain.