Indirect Object Pronoun with Y

Question

Q1) Isn't this correct?
Vous m'y avez parlé. [You spoke to me there.]     (Parler à)
Q2) Isn't the scenario of Indirect Object Pronoun/COI with Adverbial Y possible? If not, why?? 
Q3) And similarly, vice-versa the scenario of Direct Object Pronoun/COD with Adverbial En is also not possible?? Hence, is it a rule that it will always be [COD + y] and [COI + en] in Double Pronouns??

Accepted Answer

Q1) Vous m'y avez parlé is correct. However, the pronoun y does not refer to parler à but to the implied à used to specify the location ("there"). Without the pronoun y, the sentence could be, e.g.,
Vous m'avez parlé à l'école. -- You spoke to me at school.
 
Q2) Do you mean a sentence like:
Vous avez parlé à la directrice à l'école. -- You spoke to the headmistress at school.
This sentence transforms to: 
Vous lui y avez parlé. -- You spoke to her there.
However, this sounds a bit strange to French ears and you'd probably hear this version more often:
Vous lui avez parlé là-bas. -- You spoke to her there.
 
Q3) Take the sentence below as an example. It contains a COD (les) and a COI introduced by de (des nouvelles):
Je les informe des nouvelles. -- I inform them about the news.Je les en informe. -- I informe them of it.

Answer

That's a great explanation. Thank you very much Chris!!