The answer to your 2 question.
I used my phone with a stereo 3.5 mm out to dual mono Y-adapter out. This can be purchased at any electronics store.
From that I patched a mono 3.5 mm doepfer cable into the a148.

--- In Doepfer_a100@yahoogroups.com , Marc-Henri Arfeux <consulatdesyldavie@...> wrote:
>
> Hello to all members !
> I ordered a A100 bs2 in flycase this week but already plan to extend this system in the future by a second case which will be of a personal conception as regards the modules. My aim is to be able to play the two units separately, and also to gather them in musical dialogue by patching. Since I am a new user the questions i will ask now are may be naive, and apologize in advance if it is the case.
> 1 - I would like to know the maximum length of Doepfer patch cords.
> 2 - I have been listening and watching the very interesting tutorial videos by Raul Pena. On one of them (number 21) present the sample rate reduction using T/H and and S/H with A148. During this video, Raul Pena uses a music plays by his mp3 player, patching of course this source in the sample in of A148. But could you tell me what kind of cord he uses to connect with his mp3 player Is it a monophonic adapter as we see one on the accessories page in Doepfer site
> 3 - Some of the Doepfer modules have usb sockets : what to they provide in terms of computer dialogue. For instance I read the A112 Sampler allows to store sounds by Midi Dump on a computer.
> 4 - Is it possible as I imagine, to control a Doepfer with an I Pad app such as Ian Boddy does here with a Serge Modular
>
> http://www.youtube.com/watch v=oHS-z466iE8
>
>
> 5 - A last question for today, may be the most naive : I intend to perform and compose electroacoustic music with my Doepfer : I perfectly know any kind of module will be creative and useful for this purpose, depending on the patching and playing creativity of the musician. But does anyone could advise me modules that would be more accurately devoted and or essential to this exploration, apart those you find on the A100 bs2
>
> Thank you for you kind answers,
> Have a beautiful week-end,
> Marc-Henri Arfeux
>
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>